public void prepareGUI() {
mainFrame = new JFrame("Game of life");
mainFrame.setSize(750, 670);
mainFrame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
grid = new GridPanel(board.getNumOfRows(), board.getNumOfColumns());
grid.setPreferredSize(new Dimension(600, 600));
grid.setBoard(this.board.getCurrentRound());
grid.addMouseListener(this);
scrollPane = new JScrollPane(grid);
scrollPane.setHorizontalScrollBarPolicy(ScrollPaneConstants.HORIZONTAL_SCROLLBAR_ALWAYS);
scrollPane.setVerticalScrollBarPolicy(ScrollPaneConstants.VERTICAL_SCROLLBAR_ALWAYS);
buttonStart = new JButton("Start");
buttonStop = new JButton("Stop");
buttonNextRound = new JButton("Next round");
buttonClearBoard = new JButton("Clear board");
buttonStart.setMaximumSize(
new Dimension(Integer.MAX_VALUE, buttonStart.getMinimumSize().height));
buttonStop.setMaximumSize(new Dimension(Integer.MAX_VALUE, buttonStop.getMinimumSize().height));
buttonNextRound.setMaximumSize(
new Dimension(Integer.MAX_VALUE, buttonNextRound.getMinimumSize().height));
buttonClearBoard.setMaximumSize(
new Dimension(Integer.MAX_VALUE, buttonClearBoard.getMinimumSize().height));
buttonStart.addActionListener(this);
buttonStop.addActionListener(this);
buttonNextRound.addActionListener(this);
buttonClearBoard.addActionListener(this);
generationsLabel = new JLabel("Generation " + numOfGenerations);
drawingCheckBox = new JCheckBox("Drawing");
buttonsPanel = new JPanel();
buttonsPanel.setLayout(new BoxLayout(buttonsPanel, BoxLayout.PAGE_AXIS));
buttonsPanel.add(buttonStart);
buttonsPanel.add(Box.createVerticalStrut(2));
buttonsPanel.add(buttonStop);
buttonsPanel.add(Box.createVerticalStrut(2));
buttonsPanel.add(buttonNextRound);
buttonsPanel.add(Box.createVerticalStrut(2));
buttonsPanel.add(buttonClearBoard);
buttonsPanel.add(Box.createVerticalStrut(2));
buttonsPanel.add(generationsLabel);
buttonsPanel.add(Box.createVerticalStrut(2));
buttonsPanel.add(drawingCheckBox);
mainFrame.add(scrollPane, BorderLayout.CENTER);
mainFrame.add(buttonsPanel, BorderLayout.EAST);
}
